There are three types of files you can insert into an AutoREALM map. They AutoREALM maps, Windows Metafiles, and bitmaps.
Inserting Maps
The original sizing of the inserted file is used, however, and the map is placed at the center of the current view. You can resize the inserted map by dragging the hollow red handles. Note that the map inserted is not linked to the original map in any way, so if the original map changes your inserted map will not. The contents of that inserted map can be edited just as any other objects; just use Ungroup to show the individual objects that are part of the map.
Inserting Metafiles
Both standard (WMF) and enhanced (EMF) metafiles can be inserted by AutoREALM. Typically you find these file formats in clip-art collections, but other drawing programs can export metafiles as well. The metafile contents are inserted into the center of the current view, using the active overlay. They can be edited, sized (and ungrouped) just as inserted maps can.
Inserting Bitmaps
Bitmaps (BMP) are inserted as bitmap objects. Bitmaps are inserted into the center of the current view, using the active overlay. They are inserted with a one-to-one size at the current level of zoom. To make the bitmap smaller or larger, zoom out or in before doing the insertion.